https://www.theguardian.com/technology/2020/aug/07/what-is-wechat-and-why-is-trump-targeting-it > The Chinese social media platform subject to a banning order by the US president > On Friday, Donald Trump issued twin executive orders that would ban any US transactions with the Chinese companies that own TikTok and WeChat, saying the US must take “aggressive action” in the interest of national security. TikTok, a video-sharing app, has come under fire from US lawmakers and the Trump administration over national security concerns. But what is WeChat?